main {
    height: calc(100% - 76px);
}

main .video {
    height: 100%;
    width: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -99;
}

main .row {
    height: 100%;
}

.echarts {
    height: 100%;
}